Home / 2,789.23-4,182.21-1,922.53

Finding the Fourth Proportional to 2,789.23, 4,182.21 and 1,922.53

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Solution

The fourth proportional to 2,789.23, 4,182.21 and 1,922.53 is: 2,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.23 : 4,182.21 = 1,922.53 : x
  2. Step 2: Convert to fraction form
    2,789.23/4,182.21 = 1,922.53/x
  3. Step 3: Cross multiply
    2,789.23x = 4,182.21 × 1,922.53
  4. Step 4: Simplify right side
    2,789.23x = 8,040,424.19
  5. Step 5: Solve for x
    x = 8,040,424.19/2,789.23
  6. Step 6: Final answer
    x = 2,882.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.